Q:What is the meaning of the second and third socket?

ingle-phase two-pole socket plug the two-pole (fire zero) plug, single-phase three-pole socket plug three-pole (flash zero) plug.

Q:Plug the plug of the classification of what

such appliances must be added leakage protection, and grounding protection (that is, to three-pin plug). Such as air conditioning, machine tools, motors and so on.

Q:What is the difference between an aviation plug and an air outlet?

Improving the reliability of the aviation plugs is the responsibility of the manufacturer first

Q:The correct connection of the power outlet plug

Single-phase lighting circuit, the general yellow that FireWire, blue is zero line, yellow and green is the ground.

Q:We use the power outlet are mostly single-phase three-wire socket or single-phase two-wire socket

Where the shell is a metal household appliances are used in single-phase three-wire power plug

Q:Why some plugs will affect the plug on the socket

the greater the risk of Mars, the socket rust, plug rust, will also take Mars! As long as not too big

Q:Is there a difference between air conditioning sockets and other sockets?

air-conditioning socket and the general socket of the insert is not the same distance. The thickness of the plain insert is 0.3mm, 30 silk

Q:(Red, yellow, blue), zero line-N (blue or black), ground-E (yellow-green)

in the user area to use three-phase five-wire power supply, the fifth line is the grounding protection line (ground), one end is near the user area with metal conductors buried in the ground

Q:The choice of socket should be based on its surrounding environment

restaurants, cafes, etc. should be equipped with ground socket and light advertising socket; Equipped with cleaning equipment and so on.

Q:Three-wire socket with three-wire plug how ah?

Yellow is the line of fire is blue line is mixed with the ground line, the general use of electricity without electricity, especially in rural areas